Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
senecio is a noun meaning "enormous and diverse cosmopolitan genus of trees and shrubs and vines and herbs including many weeds". It carries one recorded sense.
enormous and diverse cosmopolitan genus of trees and shrubs and vines and herbs including many weeds
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for senecio come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.